84404805 has 8 divisors (see below), whose sum is σ = 135047712. Its totient is φ = 45015888.

The previous prime is 84404777. The next prime is 84404833. The reversal of 84404805 is 50840448.

It is an interprime number because it is at equal distance from previous prime (84404777) and next prime (84404833).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 84404805 - 2⁹ = 84404293 is a prime.

It is a super-2 number, since 2×84404805² = 14248342214176050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2813479 + ... + 2813508.

It is an arithmetic number, because the mean of its divisors is an integer number (16880964).

Almost surely, 2^84404805 is an apocalyptic number.

It is an amenable number.

84404805 is a deficient number, since it is larger than the sum of its proper divisors (50642907).

84404805 is a wasteful number, since it uses less digits than its factorization.

84404805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5626995.

The product of its (nonzero) digits is 20480, while the sum is 33.

The square root of 84404805 is about 9187.2087708945. The cubic root of 84404805 is about 438.6542993031.

The spelling of 84404805 in words is "eighty-four million, four hundred four thousand, eight hundred five".